On Mon, 30 Jul 2007 22:21:12 -0700 (PDT)
David Miller [off-list ref] wrote:

From: "Ilpo_Järvinen" <redacted>
Date: Tue, 31 Jul 2007 07:59:10 +0300 (EEST)

quoted

I think it's probably good to add tp->snd_una != prior_snd_una
check there too... It's not going to make a large difference,
mostly just to be conservative when skb collapse stuff got done
(and maybe to annoy cheaters too though I couldn't at this point
figure out how they could abuse it)...

...I think I can come up with that on Wednesday, so please hold
stable push until that.

It'll definitely need to wait at least a day as I cannot even make TCP
or UDP connections out from my machine with the current net-2.6 tree,
and this is what I'm debugging at the moment.

I'm hoping that it's just something stupid like the make not
rebuilding everything necessary after I changed the __u16's into
__u32's in skb_frag_t.

I running tests over emulator this morning.
Hopefully, this will fix the window collapse that occurs on startup
of large queue sizes.